Equine America Forget Flies In-Feed Solution. Utilising the latest research, and innovative technology, Forget Flies In-Feed Solution combines novel but naturally derived ingredients, ingested by the horse as part of the daily feed regime. During digestion, the active ingredients are absorbed through the gut wall, and into the blood vessels. These volatile organic oil compounds are then delivered via the vascular system to the skin, where research in the USA and UK has shown that these compounds stimulate an adverse reaction in the sensory receptors of the flies and other ectoparasites and biting insects. A natural way to combat the problem of biting insects in the summer. Benefits of Forget Flies In-Feed Solution Highly palatable and 25ml serve is easily mixed in daily feed. Combines uniquely standardised polysulphides, naturally produced from garlic, MSM and methionine, using specialised technology, removing the significant variations found in traditional straight garlic, to ensure optimum results